Buggy code:
public class FieldReference extends Reference implements InvocationSite { public Expression receiver ; public char [ ] token ; public FieldBinding binding ; protected FieldBinding codegenBinding ; public MethodBinding [ ] syntheticAccessors ; public static final int READ = 0 ; public static final int WRITE = 1 ; public long nameSourcePosition ; public TypeBinding receiverType ; public TypeBinding genericCast ; public FieldReference ( char [ ] source , long pos ) { } public FlowInfo analyseAssignment ( BlockScope currentScope , FlowContext flowContext , FlowInfo flowInfo , Assignment assignment , boolean isCompound ) { } public FlowInfo analyseCode ( BlockScope currentScope , FlowContext flowContext , FlowInfo flowInfo ) { } public FlowInfo analyseCode ( BlockScope currentScope , FlowContext flowContext , FlowInfo flowInfo , boolean valueRequired ) { } public void computeConversion ( Scope scope , TypeBinding runtimeTimeType , TypeBinding compileTimeType ) { if ( ( runtimeTimeType == null ) || ( compileTimeType == null ) ) return ; if ( ( ( this . binding ) != null ) && ( this . binding . isValidBinding ( ) ) ) { FieldBinding originalBinding = this . binding . original ( ) ; <START_BUG> if ( originalBinding != ( this . binding ) ) { <END_BUG> if ( ( ( ( originalBinding . type . tagBits ) & ( TagBits . HasTypeVariable ) ) != 0 ) && ( ( runtimeTimeType . id ) != ( TypeIds . T_JavaLangObject ) ) ) { TypeBinding targetType = ( ( ! ( compileTimeType . isBaseType ( ) ) ) && ( runtimeTimeType . isBaseType ( ) ) ) ? compileTimeType : runtimeTimeType ; this . genericCast = originalBinding . type . genericCast ( targetType ) ; } } } super . computeConversion ( scope , runtimeTimeType , compileTimeType ) ; } public FieldBinding fieldBinding ( ) { } public void generateAssignment ( BlockScope currentScope , CodeStream codeStream , Assignment assignment , boolean valueRequired ) { } public void generateCode ( BlockScope currentScope , CodeStream codeStream , boolean valueRequired ) { } public void generateCompoundAssignment ( BlockScope currentScope , CodeStream codeStream , Expression expression , int operator , int assignmentImplicitConversion , boolean valueRequired ) { } public void generatePostIncrement ( BlockScope currentScope , CodeStream codeStream , CompoundAssignment postIncrement , boolean valueRequired ) { } public TypeBinding [ ] genericTypeArguments ( ) { } public static final Constant getConstantFor ( FieldBinding binding , Reference reference , boolean isImplicit , Scope referenceScope ) { } public boolean isSuperAccess ( ) { } public boolean isTypeAccess ( ) { } public void manageSyntheticAccessIfNecessary ( BlockScope currentScope , FlowInfo flowInfo , boolean isReadAccess ) { } public Constant optimizedBooleanConstant ( ) { } public StringBuffer printExpression ( int indent , StringBuffer output ) { } public TypeBinding resolveType ( BlockScope scope ) { } public void setActualReceiverType ( ReferenceBinding receiverType ) { } public void setDepth ( int depth ) { } public void setFieldIndex ( int index ) { } public void traverse ( ASTVisitor visitor , BlockScope scope ) { } }

Fix:
if ( ( originalBinding != ( this . binding ) ) && ( ( originalBinding . type ) != ( this . binding . type ) ) ) {